The last of his letters which has been preserved is addressed to John Vlackveld, physician at Haarlem, who had sent him an interesting specimen. The letter is a characteristic one. It runs:-- "LEARNED SIR,--Your much esteemed letter reached me safely, in which you not only exhibit your kind consideration of me, but display a singular zeal in the cultivation of our art. "It is even so. Nature is nowhere accustomed more openly to display her secret mysteries than in cases where she shows traces of her workings apart from the beaten path; nor is there any better way to advance the proper practice of medicine than to give our minds to the discovery of the usual law of nature, by careful investigation of cases of rarer forms of disease. For it has been found in almost all things, that what they contain of useful or of applicable, is hardly perceived unless we are deprived of them, or they become deranged in some way. The case of the plasterer to which you refer is indeed a curious one and might supply a text for a lengthened commentary by way of illustration. But it is in vain that you apply the spur to urge me, at my present age, not mature merely but declining, to gird myself for any new investigation; for I now consider myself entitled to my discharge from duty. It will, however, always be a pleasant sight to see distinguished men like yourself engaged in this honourable arena. Farewell, most learned sir, and whatever you do, still love "Yours, most respectfully, "WILLIAM HARVEY. "LONDON, _April 24, 1657_." CHAPTER VII HARVEY'S DEATH, BURIAL, AND EULOGY Harvey died at Roehampton in the house of his brother Eliab on the 3rd of June, 1657. Aubrey says that on the morning of his death, about ten o'clock, he went to speak and found that he had the dead palsy in his tongue; then he saw what was to become of him. He knew there were then no hopes of his recovery, so presently he sends for his young nephews to come up to him, to whom he gives one the minute watch with which he had made his experiments, to another his signet ring, and to another some other remembrance. He then made signs (for being seized with the dead palsy in his tongue he could not speak) to Sambroke, his apothecary in Blackfriars, to let him blood in the tongue, which did him little or no good, and so ended his days, dying in the evening of the day on which he was stricken, the palsy giving him an easy passport.